The closure was scheduled so crews could remove and construct new tracks and a new elevator and overpass as part of an extension of the railroad to downtown San Bernardino, according to a Metrolink news release.

Authorities have said the expansion project will lead to additional connectivity with Amtrak, the sbX Green Line, additional Omnitrans bus lines and the future Redlands Passenger Rail Project.

On Monday, riders at the San Bernardino station boarded their trains and got boarding passes at the new platforms near the actual depot. Staff and signs helped direct riders to the new boarding areas.

Some construction work will still continue for the next several weeks as crews complete the elevator and overpass, as well as upgrade the messaging system, the news release stated.

The construction project is being managed by the San Bernardino County Transportation Authority.

Metrolink implemented a new schedule April 3 that contained minor changes to some trains. Officials suggested riders verify the new schedule to ensure they arrive on time for their train.

The service interruption began March 29, and buses were available at the San Bernardino and Rialto stations for passengers connecting to regularly scheduled trains in Fontana and downtown Riverside.